Cheon "Promise" Min-Ku is currently in serious condition and remains in a coma after jumping from a twelve story building. He did this after revealing lots of shady goings on within the AHQ team on the Inven forums (via Reddit) where it was revealed that the manager of the team had lied to everyone involved.
Instead of setting up a team to win, he'd been setting it up to lose, creating fake sponsorships for AHQ players and paying for their accommodation and food with loans. When he couldn't make repayments, he started forcing the team to throw matches, so he could make a killing on side bets and therefore pay off his debts.
Ultimately the situation became so bad, that the manager sold off all of the players' practice equipment, including peripherals and computers. At this point, the team decided unanimously to quit.
Due to the dishonesty and guilt he'd been holding on to and other personal issues, this lead to Min-Ku throwing himself from the top of his building. Fortunately a recycling centre 12 stories below broke his fall and he looks likely to survive. Riot has pledged to help with medical expenses until he's back on his feet and will investigate the match fixing.